Object that is not in preview is in render
I think the problem is that while visibility is off for workspace, it's not off for renders. There are a lot of objects in the scene that are rendering. Go to the Outliner window, and up in the upper right hand corner you'll see what looks like a funnel. Click on that, and up pops different visibility and selection toggles. You'll see the &quot;render&quot; setting (a little camera) is lit up for all those cubes and planes you have left in the scene.
Blender isn't like photoshop, where if you turn off the visibility of a layer, it's not active. So make sure you click those cameras to turn off what you don't want to see in the render, and see if that works.
Good luck!